<template>
  <div class="tag-container">
    <el-card>
      <!--面包屑-->
      <div slot="header" v-if="subject.id&&subject.name">
        <el-breadcrumb separator-class="el-icon-arrow-right">
          <el-breadcrumb-item>学科管理</el-breadcrumb-item>
          <el-breadcrumb-item>{{subject.name}}</el-breadcrumb-item>
          <el-breadcrumb-item>标签管理</el-breadcrumb-item>
        </el-breadcrumb>
      </div>
      <!-- 筛选 -->
      <el-row>
        <el-col :span="18">
          <el-form label-width="80px" size="small" :inline="true">
            <el-form-item label="标签名称">
              <el-input style="200px" v-model="requestParams.tagName"></el-input>
            </el-form-item>
            <el-form-item label="状态">
              <el-select v-model="requestParams.state">
                <el-option :value="1" label="启用"></el-option>
                <el-option :value="0" label="禁用"></el-option>
              </el-select>
            </el-form-item>
            <el-form-item style="text-align:right">
              <el-button @click="clear()">清除</el-button>
              <el-button @click="filter()" type="primary">搜索</el-button>
            </el-form-item>
          </el-form>
        </el-col>
        <el-col :span="6" style="text-align:right">
          <el-button v-if="subject.id && subject.name" type="text" icon="el-icon-back" @click="$router.back()">返回学科</el-button>
          <el-button type="success" icon="el-icon-edit" @click="openDialog()" size="small">新增标签</el-button>
        </el-col>
      </el-row>
      <!-- 数据记录 -->
      <el-alert :title="`数据一共 ${total} 条`" style="margin-bottom:15px" type="info" class="alert" :closable="false"
        show-icon></el-alert>
        <!--表格-->
        <el-table :data="tags">
          <el-table-column label="序号" type="index" width="80px"></el-table-column>
          <el-table-column label="所属学科" prop="subjectName"></el-table-column>
          <el-table-column label="标签名称" prop="tagName"></el-table-column>
          <el-table-column label="创建者" prop="username"></el-table-column>
          <el-table-column label="创建日期" >
            <template slot-scope="scope">{{scope.row.addDate|parseTimeByString}}</template>
          </el-table-column>
          <el-table-column label="状态">
            <template slot-scope="scope">{{scope.row.state ===1?'已启用':'已禁用'}}</template>
          </el-table-column>
          <el-table-column label="操作">
            <template slot-scope="scope">
              <el-button type="text" @click="toggleState(scope.row)">{{scope.row.state ===1?'禁用':'启用'}}</el-button>
              <el-button type="text" @click="openDialog(scope.row)" :disabled="scope.row.state===1">修改</el-button>
              <el-button type="text" @click="delTag(scope.row)" :disabled="scope.row.state===1||scope.row.totals > 0">删除</el-button>
            </template>
          </el-table-column>
        </el-table>
        <!--分页-->
        <el-pagination style="margin-top:20px;text-align:right" background layout="prev,pager,next,sizes,jumper" :total="total" :page-size="requestParams.pagesize" :current-page="requestParams.page" @current-change="pager" :page-sizes="[5,10,20,50]" @size-change="handleSizeChange" hide-on-single-page></el-pagination>
    </el-card>
    <!--添加|修改-->
    <tags-add ref="tagsAdd" :data="currTag" @updateList="updateList()"></tags-add>
  </div>
</template>

<script>
import { list,changeState,remove } from "@/api/hmmm/tags"
import TagsAdd from '../components/tags-add'
export default {
  name:'TagsList',
  components:{TagsAdd},
  data(){
    return{
      requestParams:{
        tagName:null,
        state:null,
        page:1,
        pagesize:10
      },
      total:0,
      tags:[],
      currTag:{}
    }
  },
  computed:{
    subject(){
      return this.$route.query || {}
    }
  },
  created(){
    this.getList()
  },
  watch:{
    '$route.query':function(){
      this.getList()
    }
  },
  methods:{
    //查询列表
    async getList(){
      this.requestParams.subjectID = this.subject.id || null
      const {data} = await list(this.requestParams)
      this.total = data.counts
      this.tags = data.items
    },
    //进行筛选
    filter(){
      this.requestParams.page = 1
      this.getList()
    },
    //清除筛选条件
    clear(){
      this.requestParams = {
        tagName:null,
        state:null,
        page:1,
        pagesize:10
      }
    },
    //切换条数
    handleSizeChange(size){
      this.requestParams.page = 1
      this.requestParams.pagesize = size
      this.getList()
    },
    //切换分页
    pager(np){
      this.requestParams.page = np
      this.getList()
    },
    openDialog(tag={}){
      this.currTag = tag
      this.$nextTick(()=>{
        this.$refs.tagsAdd.open()
      })
    },
    //切换状态
    async toggleState(tag){
      await changeState({
        id:tag.id,
        state:tag.state === 1?0:1
      })
      this.$message.success('操作成功')
      tag.state = tag.state ===1 ?0:1
    },
    async delTag(tag){
      await this.$confirm('此操作将永久删除该标签，是否继续？','提示',{
        confirmButtonText:'确定',
        cancelButtonText:'取消',
        type:'warning'
      })
      await remove(tag)
      this.$message.success('删除成功')
      this.getList()
    },
    //新增|修改 后更新列表
    updateList(){
      if(!this.currTag.id){
        this.requestParams.page = 1
      }
      this.getList()
    }
  }
}
</script>

<style lang="scss" scoped>
.tags-container{
  padding: 10px;
}
</style>
